Microsoft-Windows-Defrag-Core

Seen on:

  • Windows 2012

  • Windows 8.1

  • Windows 10 (1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2)

  • Windows 2016

  • Windows 2019

  • Windows 11 (21H2)

Name: Microsoft-Windows-Defrag-Core
Identifier: {e3257c8c-c7cb-444f-9da0-5d92a2625289}
Event message file(s): %SystemRoot%\System32\defragres.dll